Metal-casting machine.



J; E. LAFERRIERE.

METAL CASTING MACHINE. APPLICATION FILED MAY 25. I917- Patented Nov. 6, 1917.

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s. E. LAFE RRIERE.

I METAL CASTING MACHINE. APPLICATION FILED MAY25. I91?- Patented NW. 6; 1917.

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METAL CASTING MACHINE.

APPLICATIOII FILED MAY25. I917.

Patented Nov. 6, 1917.

3 SHEETSSHEET 3.

Invenior:

JosephEiLajrriere.

UNITED STATES PATENT OFFICE.

JOSEPH E. LAFERRIEBE, OF BOSTON, MASSACHUSETTS, ASSIGNOR ,IO SPRAY ENGINEERING COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATIONOF MASSACHUSETTS.

METAL-CASTING MACHINE.

Patented Nov. 6, 1917.

Application filed May 25, 1917. SerialNo. 170,855.

dent of Boston, in the county of Suffolk and State of Massachusetts, have invented an Improvement in Metal-Casting Machines, of

which the following description, in connection with the accompanying drawings, 1s a specification, like characters on the drawings representing like parts.

This invention relates to metal casting machines adapted for use in many different relations. While not limiting myself to such use, I. have herein represented the same as adapted to the manufacture of type and type bars to which it is peculiarly adapted, and have shown the same as applied to a type casting machine of the general organization shown in my Patent No. 1,191,085, dated July 11, 1916.

In order that the principle of my invention may be readily understood, I shall disclose a single embodiment thereof and illustrate only that form that is. adapted to the casting of type bars, without, however, in any sense limiting myself thereto.

In the drawings,

Figure 1 is a plan view with parts broken away of a type bar casting machine embodying my invention; T

Fig. 2 is a vertical cross sectional view of the casting machine shown in Fig. l;

Fig 3 is a similar view of a slightly modified form of my invention; and

Figs. 4, 5 and 6' are views in side elevation representing different positions of portions of the means for operating the mold members in effecting the shearing operation.

' My invention is more particularly adapted for use in the casting of various articles, such for example as plates, ornamental articles and the like. I will in the ensuing description set forth only that form of my invention peculiarly adapted for the casting of type bars, and shall limit my description thereto without in any wise so limiting the invention.

1 An important object of that form of my invention adapted to the casting of types and type bars is to provide a machine for I castingthat is of'simple and comparatively inexpensive construction, and that may be manually operated bya single person, and yet may be operated effectively and with scribed.

suiiicient rapidity to permit of its use by printers whose work is not such as to call for the use of a highly organized, expensive, automatic machine, such as are now upon the market.

As set forth in my said Patent No. 1,191,085, I provide two mold members having a relative movement toward and from each other, but in addition, as fully set forth hereinafter, I so organize said members as to insure a shearing of the cast metal from the molten mass. I preferably provide the melting pot with an extension, but instead of rigidly securing one of the mold members thereto and mounting the co-acting mold member for movement with respect to the first mold member, I so mount or organize the two mold members .as to effect the cast ing operation and a subsequent shearing operation, which, however, may be effected if desired substantially simultaneously with the casting operation or at any proper time subsequent thereto. Other features of my invention will be set forth more fullyhereinafter.

Referring more particularly to the drawings, I have in Figs. 1 and 2 represented a frame composed of suitable uprights 11, which may be formed of tubular metallic material. nected by longitudinal and cross members, not herein shown, and preferably of simi: lar construction and material. Bolted or otherwise secured to the upper ends of the uprights 1 is a table 2 having openings 3, 4 therein. The opening 3 is here shown as circular and therein is mounted the melting pot 5 secured in place in any suitable manner, not herein necessary more fully ,to describe. The said melting pot may be of any suitable construction and is here represented as having integral therewith an inner cylindrical portion 6 provided with a suitable plunger 7. The construction of said pot may be similar to that shown in my said patent and need not be further deextending from its lower end an extension 8 leading to and through the side wall of the melting pot and there communicating with a prolongation 9 which may be simi lar to that shown in my said patent, but preferably is of less length. Said prolon- These uprights are suitably con- Said cylindrical portion 6 has laterally and preferably somewhatupwardly gation is of considerable width and preferably gradually. increases in width to the length of the longest lineor bar to be cast by the machine. The piston 7 may beoperated in any suitable manner, not herein necessary more fully to disclose, and preferably in the manner shown in my said patent. To that end, I have merely diagrammatically indicated a link 10 pivoted to the'plunger 7 at 11. While I may employ any suitable means for maintaining the lead or other metal in the melting pot 6 in a molten condition, I have herein represented a gas pipe 12 located beneath the melting pot, and preferably similar in construction and arrangement to that shown inmy said patent and not herein necessary more fully to describe. The extension -9 of the melting pot is of such length that the operator isnot in sufiiciently close proximity to the melting pot to be incommoded thereby. I have shown the said meltingpot as located at one end of the table 2 and the mold members as positioned preferably near sion, as in my said patent, is mounted with capacity fior shearing movement. While for this purpose it may be mounted in any suitable manner, I have herein represented it as pivotally connected at each end to v links 14, 14:, which at their opposite ends are pivotally secured by bolts 15, 15 to lugs or slight extensions 16, 16 of the table 2.

I have herein represented themold member 13 as formed in two parts, the lower part 17 which constitutes the mold member proper being secured by screws 18 to the supporting member 13. Obviously, however, the said member may be made in one part or more than two parts, if desired.

The lower mold member is indicated at 19, and it may be and preferably is operated in the same manner. Within the scope of my invention, however, any other suitable arrangement may be provided. I have herein represented said mold member 19 as having attached thereto a yoke 20 to which is suitably connected an upright rod 21, which, as most clearly shown in Figs. 4, 5 and 6 is hollow and into the lower end of which telescopes a short stud 22. Fast to the connecting rod 21 is a collar 23, and between the same and a collar fast upon or formed with the stud 22 is a coiled spring 25. The said stud 22 is pivotally connected at 26 to amember 27- leading to or forming part of a suitable treadle or other operating means for the mold members. When the operators foot is removed from the treadle, the weight of the lower mold member and other parts move said mold member out of molding relation to the upper mold member 13, 17. The mouth of the extension 9 preferably has secured to its inner face a block or member 28 through which extends a suitable number of openings 29 for the molten metal substantially as shown in my said patent, excepting that said openings do not extend in this form of invention through either of the mold members, but rather between them as clearly indicated in Fig. 2.

It is important that there be no trapping of air between the mold members, and that means may be provided for the escape of air and also for surplus metal. To that end, I provide suitable means permitting the escape thereof, and in .Fig. 2 have represented one or more passages 30 leading from the space between the two mold members 13, 17, 19 to some suitable point of discharge, and in Fig. 2 I have represented said passage or passages as leading back to the melting pot 5. Preferably the said passage or passages 30 are formed in a member 31 integral with the melting pot structure. I have herein shown the said passage or passages 30 as communicating with the space be tween the mold members slightly above the polnt at which the molten metal is admitted between said mold members.

Instead of causing the passage or passages 30 to communicate with the melting pot as indicated in Fig. 2, I may cause them to communicate with the passage 9 or extension thereof, and for this purpose I have in Fig. 3 represented the passage 9 as having an upward extension 32 into which lead the passage or passages 33 for the escape of air.

Preferably the extension 32 is tubular and -will enter to a greater or less extent the extension 32 which is preferably threaded to a considerable extent downward from its upper surface sufficiently to receive the largest plug. I also preferably provide one or more plugs with an upward extension, so that if necessary the capacity of the extension 32 may be enlarged.

Instead of employing the constructions shown in Figs. 2 and 3, I may provide pas- 1 erably similar sages communicating directly with the outer a1r. a

The matrix carrier or support is prefto that shown in my said Patent No. 1,191,085, and is preferably adapted to be mgved manually along the table to and from the casting position. have herein represented the matrix carrier at 36 as slidably mounted and guided upon the member 37 which need not be more fully described. The said matrix carrier has pivotally connected thereto at 38 a link 39 which through means of a link or extension 40 and a handle 41 may be operated as shown inmy said patent in a manner not herein necessary more fully to describe.

The lower mold member 19 is guided along the front face 42 of the melting pot extension 40 or the block 28 secured thereto,

' levers 43 are preferably slightly bent as in-'.

. the machine,

and the molding operation is effected by relative movement of the two mold members, as disclosed in said Patent No. 1,191,085. In my said patent, the upper mold member is rigid and hence is immovable. ()ne object of my present invention is to provide means for effecting a shearing of the molded metal while in the mold away from the molten mass within the passage or passages 9 and so as to secure or provide type bars, the rear faces" of which are smooth. To this end I make the upper mold member movable and have represented one way of securing such movement. The upper mold member 13, 17

invention, secured is'not, in this form of my to the lower mold, but is adapted nevertheless to be moved thereby at the end of the molding operation so as to eifect the de-.

scribed shearing action; Between the said mold members I preferably provide suitable spacing blocks as described in my said patent. 3

- While my inventionis not limited thereto, I preferably provide suitable means manually to effect the shearing action of the mold members. To that end, and as most clearly shown in Figs. 2, 4, 5 and 6, I. provide-two parallel levers, one of which is indicated at 43 and which are connected by a cross member 44 having thereon a tubular member 45 constituting a hanle. The said levers are pivotally connected at 46 to the framing of and one or both thereof have a downward extension 47 provided with a counterweight 48 tending to swing toward the right, viewing Figs. 4, 5 and 6. The

dicated in Figs. 4, 5, and 6. a

. Pivoted at 49 to the lower end of the levers 43 I provide preferably a pair of lever arms '50, the upper ends ofw-hich are bent forwardly as in have pivoted thereto at 51 the dperator in combination, a mold member, and

molding is effected, means Figs. 4, 5 and 6, and the upper ends member; 13. For eifectvates the lower mold member 19, and at th pivotal point 46 of the levers 43. The operator swings the said levers 43 upwardly into the position shown in Fig. 6, thus unlocking same upwardly; that the upper mold member and permitting the same to be moved upwardly by the action of the'compressed coil spring 25 and the counterweight 48. The mid position of the parts is represented in Fig. 5. After the shearing action, the upper mold member is returned to locking position by moving the levers '43 by hand into the position shown in Fig. 4.

Having thus described one illustrative embodiment of my invention, understood that although specific terms are employed, they are used in a generic and descriptive sense and not for purposes of limitation, the scope of the invention being set forth in the following claims.

Claims: 1. A metal casting machine comprising an o posite coiiperating mold member across t e cast metal cavity therefrom and?- against and between which opposed members the for imparting relative movement thereto to effect the said molding operation, andmeans to eflect a shearing action by mold movement.

2. A metal in combination, a mold opposite cooperating member, and an and between which opposed members the relative movement to said members to a. efiect said molding operation, and means subsequently to effect a shearing action by mold movement.

3. A metal casting machine comprising in combination, a mold member, and an opposite cooperating mold member across the cast metal cavity therefrom and against and between which opposed members the molding is'efiected, means relative Inovementto said membersto effect the said molding action, and -means subsequently to impart a shearing of said mold members. t

4. A metal casting machine comprising in combination, a mold member, and an opposite coiiperating mold member. across mold memberacross the cast metal cavity therefrom and. against for imparting I desire it .to be casting machine comprising action to both 3 vmolding is cfliected, means for manually imparting relative movement to said members to effect the said molding operation, and means manually to effect a shearing operation by mold movement.-

5. A metal casting machine comprising in combination, a mold member, and an' opposite cooperating mold member across the cast metal cavity therefrom and against and between which opposed members the molding is efiected, means for manually imparting relative movement to said members to effect the said molding operation, and means subsequently and manually to impart a shearing action to said mold members.

6. A metal casting machine comprising in combination, a mold member, and an opposite cooperating mold member across the cast metal cavity therefrom and against and between which opposed members the molding is effected, means for manually imparting relative movement to said members to eflect the said molding operation, means for subsequently imparting a shearing action to said mold members, and a matrix carrier manually movable toward and from the assembled mold members.

7. A metal casting machine comprising in combination, an upper mold member and an opposite coiiperating mold member across the cast metal cavity therefrom and against and between which opposed members the molding is effected, and means for manually imparting movement to the lower mold member to effect the molding operation, said upper mold member having capacity for yielding movement for effecting a shearing action.

8. A metal casting machine comprising in combination, an upper mold member and an opposite cooperating lower mold member across the cast metal cavity therefrom and against and between which opposed members the molding is efl'ected, means for manually imparting movement to the lower mold member to effect the molding action, means for locking and unlocking the upper mold member and a matrix member having a to and fro movementwith respect to said mold members. a r

9. A metal casting machine comprising in combination, two opposite mold members, between and in contact with which the actual molding is eflected, one of which is movable in effecting the molding action and the other of which is constructed and arranged to be locked in molding position and to be unlocked for movement into shearing position, said mold members being positioned With respect; to each other across the cast metal cavity and against and between which opposed. members the molding is eifected.

10. A metal casting machine comprising in combination, an upper and an opposite lower mold member across the cast metal cavity therefrom and against and between which opposed members the molding is effected, means to hold one of said members stationary and to move the other member in efl'ecting the molding operation, and means to move both of said members in effecting a shearing action.

11. A metal casting machine comprising in combination, an upper mold member and an opposite lower mold' member across the cast metal cavity therefrom and against and between which opposed members the molding is eflected,.means for manually moving the lower mold member to effect the molding action, means manually to lock and m1- lock the upper mold member and cooperating means to effect a shearing action by mold movement.

12. A metal casting machine comprising in combination, an upper mold member and an opposite lower mold member across the cast metal cavity therefrom and against and between which opposed members the molding is effected, means for manually moving the lower mold member to effect the molding I cast metal cavity therefrom and against and between which opposed members the molding is effected, means for manually moving the .lowermold member to effect the molding action, means manually to lockand unlock the upper mold member, cooperating means to effect a shearing action by mold movement, and a matrix carrier movable toward and from the assembled mold members.

14. A metal casting machine comprising in combination, an upper mold member and an opposite lower mold member across the cast metal cavity therefrom and against and between which opposed members the mold ing is effected, means for manually moving the lower mold member to effect the molding action, means manually to lock and unlock the upper mold member, cooperating means to effect a shearing action by mold movement, and a matrix carrier movable to and from the mold members in a plane at sub-' stantially right angles to the line of molding movement of the lower mold member;

15. A metal casting machine comprising in combination, a mold, composed of two opposite cooperating mold members across the cast metal cavity from each other and against and between which opposed mem 13 bers the molding is efi'ected, means operative upon one of said mold members to effect the molding operation, and means to eflfect a shearing action by mold movement.

16. A metal casting machine comprising in combination, a mold member, a cooperating opposite mold member across the cast metal cavity from said mold member and between which mold members the molding is effected, means to impart movement to one i of said mold members to effect the molding operation, and means subsequently to impart movement'to both of said mold members to effect the shearing .operation.

17. A metal. casting machine comprising in combination opposed cooperating mold members and positioned in the molding operation across themolded metal cavity from each other and against and between which the molding is effected, and means to eifect a molding movement and a shearing movement of the mold.

18. A metal casting machine comprising in combination, a mold pot having an extension, opposed codperating mold members positioned in the molding operation across the molded metal cavity from each other and against and between which members the molding is efiected, means to impart molding movement and means to impart shearing movement to the mold members.

19. A metal casting machine comprising in combination, a mold member and an opposed cooperating mold member positioned in the molding action across the molded metal cavity from said mold member and against andbetween which members the molding is eife'cted, means for imparting relative movement to said members to efieet the molding operation, and means to impart a movement to said mold members after the molding operation.

20. A metal casting machine comprising in combination, a. mold member, a coiiperating mold member, means to impart movement to one of said mold members to effect the molding operation, and means subsequently to impart movement to both of said mold members in the direction of the molding movement of the mold member that is moved in effecting the molding operation.

21. A metal casting machine comprising in combination, a moldmember and a coiiperating mold member, between and in contact with which the actual molding is eflfected, means to impart relative movement to said-members to effect the molding action, means to' lock one of said mold members during the molding action, means to unlock said mold member, and means to effect the shearing action by mold movement.

22. A 'metal casting machine comprising in combination, a mold member, a cooperating mold member, means to move the cooperating mold member to effect the molding operation, means to lock the mold member during the molding operation, means to unlock said mold member, and means to efifect the shearing operation by movement of the cooperating mold member and the unlocked mold member. p 23. A metal casting machine comprising in combination, two mold members, means to lock one of them during the molding movement, means to unlock said member, and means to effect a shearing o erationby movement of said unlocked mo d member.

In testimony whereof, I have signed my name to this specification.

JOSEPH E. LAFERRIERE.

"Correction In Lettere Petent No. 1,245.598.

11-. is hereby emifieo nm'in letters Patent 'No:'1,2 45, 598, grapted November 6, 1917, upon the application of Joseph E. Leferriere, of Boston, Mmeohueette, for an improvement in MeteI Cesting Meehinee, an error appears in the printed specification requiring eorrection as follows: Page 4, lines 56 5?, claim 9, strike out the words between and in oo'ntaofwith which the ebtual molding is effected,; and that the said Letters Patent should read with this correction therein that the same may conform to the record of the case in the Patent Oflioe.

Signed and sealed this 5th day o LFebruery, A. 1)., 1918.

R. F. WHITEHEAD,

Acting C'omminimm' of Patents.

[mun] 

